.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;  
  padding: 20px;
}

.login-form {
  background: white;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
}

.login-title {
  font-size: 32px;
  font-weight: bold;
  text-align: center;
  color: #333;
  margin-bottom: 40px;
  margin-top: 0;
}

.form-group {
  margin-bottom: 20px;
}

.verification-group {
  display: flex;
  gap: 12px;
  align-items: center;
}

.form-input {
  width: 100%;
  height: 50px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  padding: 0 16px;
  font-size: 16px;
  color: #333;
  background: white;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: #4CAF50;
}

.form-input::placeholder {
  color: #999;
}

.verification-input {
  flex: 1;
}

.send-code-btn {
  height: 50px;
  padding: 0 20px;
  background: #4CAF50;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
  white-space: nowrap;
  min-width: 100px;
}

.send-code-btn:hover:not(:disabled) {
  background: #45a049;
}

.send-code-btn:disabled {
  background: #cccccc;
  cursor: not-allowed;
}

.login-btn {
  width: 100%;
  height: 50px;
  background: #cccccc;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin-top: 10px;
}

.login-btn:hover {
  background: #b8b8b8;
}

.login-btn:active {
  background: #a0a0a0;
}

/* 响应式设计 */
@media (max-width: 480px) {
  .login-form {
    padding: 30px 20px;
  }
  
  .login-title {
    font-size: 28px;
    margin-bottom: 30px;
  }
  
  .verification-group {
    flex-direction: column;
    gap: 10px;
  }
  
  .send-code-btn {
    width: 100%;
    min-width: auto;
  }
}